St. Anthony is a city located in Fremont County, Idaho. St. Anthony has a 2026 population of 4,286. It is also the county seat of Fremont County. St. Anthony is currently growing at a rate of 2.32% annually and its population has increased by 15.62% since the most recent census, which recorded a population of 3,707 in 2020.
The median household income in St. Anthony is $53,152 with a poverty rate of 17.99%. The median age in St. Anthony is 32.4 years: 33.2 years for males, and 31.7 years for females. For every 100 females there are 107.9 males.
Data after 2023 is projected based on recent change
Overall: 32.4 years
Female: 31.7 years
Male: 33.2 years
There are 2,995 adults, (575 of whom are seniors) in St. Anthony.
Female: 1,881 (48.1%)
Male: 2,030 (51.9%)
The racial composition of St. Anthony includes 71.82% White, 12.35% other race, 3.07% Native American, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,809 | 71.82% |
| Other race | 483 | 12.35% |
| Two or more races | 460 | 11.76% |
| Native American | 120 | 3.07% |
| Black or African American | 15 | 0.38% |
| Asian | 15 | 0.38% |
| Native Hawaiian or Pacific Islander | 9 | 0.23% |
St. Anthony 's average per capita income is $31,636. Household income levels show a median of $53,152. The poverty rate stands at 17.99%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $65,833 | - |
| Families | $54,891 | $61,521 |
| Households | $53,152 | $69,059 |
| Non Families | $46,125 | $79,590 |
Average Income
Median Household Income
Poverty Rate